Serial Ports; Leds - ABB NEXUS-3 Series User Manual

SERIAL PORTS

NC = Not Connected

LEDS

User
Switch
Mode
LEDS
1 ... 4
LED
HDD
Power Device is on
Internal MCU is not
functioning
Watchdog
normally
Currently selected
user mode
LEDs 1-4
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Watchdog
Not
used
On Off
- -
Device is off
Internal MCU is not
functioning
normally
-
NEXUS-3 Series |
Pin RS-232 RS-422
1 DCD
2 RX
3 TX
4
DTR
5 GND
6 DSR
7
RTS
8 CTS
9 RI
Power
Blink
Internal storage
drive activity
Device is asleep
Firmware
bootloader is
active
-
Overview
RS-485
TX- TX-/RX-
TX+ TX+/RX+
RX+ NC
RX- NC
NC NC
NC NC
NC NC
NC NC
NC NC
HDD
Pulse
-
-
Internal MCU is
functioning
normally
-
8